Cheap Frontier Airlines flights Seattle (SEA) to Boise (BOI)

Cheap Frontier Airlines flights Seattle (SEA) to Boise (BOI)

Prices were available within the past 7 days and start at for one-way flights and $306 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 8 - Fri, Oct 10

SEA

Seattle

BOI

Boise

$306 Roundtrip, found 1 day ago

$306

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Oct 8 from Seattle to Boise, returning Fri, Oct 10, priced at $306 found 1 day ago

Thu, Oct 9 - Sun, Oct 12

SEA

Seattle

BOI

Boise

$381 Roundtrip, found 6 days ago

$381

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Oct 9 from Seattle to Boise, returning Sun, Oct 12, priced at $381 found 6 days ago